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-rw-r--r--crypto/camellia_generic.c1101
1 files changed, 1101 insertions, 0 deletions
diff --git a/crypto/camellia_generic.c b/crypto/camellia_generic.c
new file mode 100644
index 00000000000..26bcd7a2d6b
--- /dev/null
+++ b/crypto/camellia_generic.c
@@ -0,0 +1,1101 @@
+/*
+ * Copyright (C) 2006
+ * NTT (Nippon Telegraph and Telephone Corporation).
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Algorithm Specification
+ * http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
+ */
+
+/*
+ *
+ * NOTE --- NOTE --- NOTE --- NOTE
+ * This implementation assumes that all memory addresses passed
+ * as parameters are four-byte aligned.
+ *
+ */
+
+#include <linux/crypto.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <asm/unaligned.h>
+
+static const u32 camellia_sp1110[256] = {
+ 0x70707000, 0x82828200, 0x2c2c2c00, 0xececec00,
+ 0xb3b3b300, 0x27272700, 0xc0c0c000, 0xe5e5e500,
+ 0xe4e4e400, 0x85858500, 0x57575700, 0x35353500,
+ 0xeaeaea00, 0x0c0c0c00, 0xaeaeae00, 0x41414100,
+ 0x23232300, 0xefefef00, 0x6b6b6b00, 0x93939300,
+ 0x45454500, 0x19191900, 0xa5a5a500, 0x21212100,
+ 0xededed00, 0x0e0e0e00, 0x4f4f4f00, 0x4e4e4e00,
+ 0x1d1d1d00, 0x65656500, 0x92929200, 0xbdbdbd00,
+ 0x86868600, 0xb8b8b800, 0xafafaf00, 0x8f8f8f00,
+ 0x7c7c7c00, 0xebebeb00, 0x1f1f1f00, 0xcecece00,
+ 0x3e3e3e00, 0x30303000, 0xdcdcdc00, 0x5f5f5f00,
+ 0x5e5e5e00, 0xc5c5c500, 0x0b0b0b00, 0x1a1a1a00,
+ 0xa6a6a600, 0xe1e1e100, 0x39393900, 0xcacaca00,
+ 0xd5d5d500, 0x47474700, 0x5d5d5d00, 0x3d3d3d00,
+ 0xd9d9d900, 0x01010100, 0x5a5a5a00, 0xd6d6d600,
+ 0x51515100, 0x56565600, 0x6c6c6c00, 0x4d4d4d00,
+ 0x8b8b8b00, 0x0d0d0d00, 0x9a9a9a00, 0x66666600,
+ 0xfbfbfb00, 0xcccccc00, 0xb0b0b000, 0x2d2d2d00,
+ 0x74747400, 0x12121200, 0x2b2b2b00, 0x20202000,
+ 0xf0f0f000, 0xb1b1b100, 0x84848400, 0x99999900,
+ 0xdfdfdf00, 0x4c4c4c00, 0xcbcbcb00, 0xc2c2c200,
+ 0x34343400, 0x7e7e7e00, 0x76767600, 0x05050500,
+ 0x6d6d6d00, 0xb7b7b700, 0xa9a9a900, 0x31313100,
+ 0xd1d1d100, 0x17171700, 0x04040400, 0xd7d7d700,
+ 0x14141400, 0x58585800, 0x3a3a3a00, 0x61616100,
+ 0xdedede00, 0x1b1b1b00, 0x11111100, 0x1c1c1c00,
+ 0x32323200, 0x0f0f0f00, 0x9c9c9c00, 0x16161600,
+ 0x53535300, 0x18181800, 0xf2f2f200, 0x22222200,
+ 0xfefefe00, 0x44444400, 0xcfcfcf00, 0xb2b2b200,
+ 0xc3c3c300, 0xb5b5b500, 0x7a7a7a00, 0x91919100,
+ 0x24242400, 0x08080800, 0xe8e8e800, 0xa8a8a800,
+ 0x60606000, 0xfcfcfc00, 0x69696900, 0x50505000,
+ 0xaaaaaa00, 0xd0d0d000, 0xa0a0a000, 0x7d7d7d00,
+ 0xa1a1a100, 0x89898900, 0x62626200, 0x97979700,
+ 0x54545400, 0x5b5b5b00, 0x1e1e1e00, 0x95959500,
+ 0xe0e0e000, 0xffffff00, 0x64646400, 0xd2d2d200,
+ 0x10101000, 0xc4c4c400, 0x00000000, 0x48484800,
+ 0xa3a3a300, 0xf7f7f700, 0x75757500, 0xdbdbdb00,
+ 0x8a8a8a00, 0x03030300, 0xe6e6e600, 0xdadada00,
+ 0x09090900, 0x3f3f3f00, 0xdddddd00, 0x94949400,
+ 0x87878700, 0x5c5c5c00, 0x83838300, 0x02020200,
+ 0xcdcdcd00, 0x4a4a4a00, 0x90909000, 0x33333300,
+ 0x73737300, 0x67676700, 0xf6f6f600, 0xf3f3f300,
+ 0x9d9d9d00, 0x7f7f7f00, 0xbfbfbf00, 0xe2e2e200,
+ 0x52525200, 0x9b9b9b00, 0xd8d8d800, 0x26262600,
+ 0xc8c8c800, 0x37373700, 0xc6c6c600, 0x3b3b3b00,
+ 0x81818100, 0x96969600, 0x6f6f6f00, 0x4b4b4b00,
+ 0x13131300, 0xbebebe00, 0x63636300, 0x2e2e2e00,
+ 0xe9e9e900, 0x79797900, 0xa7a7a700, 0x8c8c8c00,
+ 0x9f9f9f00, 0x6e6e6e00, 0xbcbcbc00, 0x8e8e8e00,
+ 0x29292900, 0xf5f5f500, 0xf9f9f900, 0xb6b6b600,
+ 0x2f2f2f00, 0xfdfdfd00, 0xb4b4b400, 0x59595900,
+ 0x78787800, 0x98989800, 0x06060600, 0x6a6a6a00,
+ 0xe7e7e700, 0x46464600, 0x71717100, 0xbababa00,
+ 0xd4d4d400, 0x25252500, 0xababab00, 0x42424200,
+ 0x88888800, 0xa2a2a200, 0x8d8d8d00, 0xfafafa00,
+ 0x72727200, 0x07070700, 0xb9b9b900, 0x55555500,
+ 0xf8f8f800, 0xeeeeee00, 0xacacac00, 0x0a0a0a00,
+ 0x36363600, 0x49494900, 0x2a2a2a00, 0x68686800,
+ 0x3c3c3c00, 0x38383800, 0xf1f1f100, 0xa4a4a400,
+ 0x40404000, 0x28282800, 0xd3d3d300, 0x7b7b7b00,
+ 0xbbbbbb00, 0xc9c9c900, 0x43434300, 0xc1c1c100,
+ 0x15151500, 0xe3e3e300, 0xadadad00, 0xf4f4f400,
+ 0x77777700, 0xc7c7c700, 0x80808000, 0x9e9e9e00,
+};
+
+static const u32 camellia_sp0222[256] = {
+ 0x00e0e0e0, 0x00050505, 0x00585858, 0x00d9d9d9,
+ 0x00676767, 0x004e4e4e, 0x00818181, 0x00cbcbcb,
+ 0x00c9c9c9, 0x000b0b0b, 0x00aeaeae, 0x006a6a6a,
+ 0x00d5d5d5, 0x00181818, 0x005d5d5d, 0x00828282,
+ 0x00464646, 0x00dfdfdf, 0x00d6d6d6, 0x00272727,
+ 0x008a8a8a, 0x00323232, 0x004b4b4b, 0x00424242,
+ 0x00dbdbdb, 0x001c1c1c, 0x009e9e9e, 0x009c9c9c,
+ 0x003a3a3a, 0x00cacaca, 0x00252525, 0x007b7b7b,
+ 0x000d0d0d, 0x00717171, 0x005f5f5f, 0x001f1f1f,
+ 0x00f8f8f8, 0x00d7d7d7, 0x003e3e3e, 0x009d9d9d,
+ 0x007c7c7c, 0x00606060, 0x00b9b9b9, 0x00bebebe,
+ 0x00bcbcbc, 0x008b8b8b, 0x00161616, 0x00343434,
+ 0x004d4d4d, 0x00c3c3c3, 0x00727272, 0x00959595,
+ 0x00ababab, 0x008e8e8e, 0x00bababa, 0x007a7a7a,
+ 0x00b3b3b3, 0x00020202, 0x00b4b4b4, 0x00adadad,
+ 0x00a2a2a2, 0x00acacac, 0x00d8d8d8, 0x009a9a9a,
+ 0x00171717, 0x001a1a1a, 0x00353535, 0x00cccccc,
+ 0x00f7f7f7, 0x00999999, 0x00616161, 0x005a5a5a,
+ 0x00e8e8e8, 0x00242424, 0x00565656, 0x00404040,
+ 0x00e1e1e1, 0x00636363, 0x00090909, 0x00333333,
+ 0x00bfbfbf, 0x00989898, 0x00979797, 0x00858585,
+ 0x00686868, 0x00fcfcfc, 0x00ececec, 0x000a0a0a,
+ 0x00dadada, 0x006f6f6f, 0x00535353, 0x00626262,
+ 0x00a3a3a3, 0x002e2e2e, 0x00080808, 0x00afafaf,
+ 0x00282828, 0x00b0b0b0, 0x00747474, 0x00c2c2c2,
+ 0x00bdbdbd, 0x00363636, 0x00222222, 0x00383838,
+ 0x00646464, 0x001e1e1e, 0x00393939, 0x002c2c2c,
+ 0x00a6a6a6, 0x00303030, 0x00e5e5e5, 0x00444444,
+ 0x00fdfdfd, 0x00888888, 0x009f9f9f, 0x00656565,
+ 0x00878787, 0x006b6b6b, 0x00f4f4f4, 0x00232323,
+ 0x00484848, 0x00101010, 0x00d1d1d1, 0x00515151,
+ 0x00c0c0c0, 0x00f9f9f9, 0x00d2d2d2, 0x00a0a0a0,
+ 0x00555555, 0x00a1a1a1, 0x00414141, 0x00fafafa,
+ 0x00434343, 0x00131313, 0x00c4c4c4, 0x002f2f2f,
+ 0x00a8a8a8, 0x00b6b6b6, 0x003c3c3c, 0x002b2b2b,
+ 0x00c1c1c1, 0x00ffffff, 0x00c8c8c8, 0x00a5a5a5,
+ 0x00202020, 0x00898989, 0x00000000, 0x00909090,
+ 0x00474747, 0x00efefef, 0x00eaeaea, 0x00b7b7b7,
+ 0x00151515, 0x00060606, 0x00cdcdcd, 0x00b5b5b5,
+ 0x00121212, 0x007e7e7e, 0x00bbbbbb, 0x00292929,
+ 0x000f0f0f, 0x00b8b8b8, 0x00070707, 0x00040404,
+ 0x009b9b9b, 0x00949494, 0x00212121, 0x00666666,
+ 0x00e6e6e6, 0x00cecece, 0x00ededed, 0x00e7e7e7,
+ 0x003b3b3b, 0x00fefefe, 0x007f7f7f, 0x00c5c5c5,
+ 0x00a4a4a4, 0x00373737, 0x00b1b1b1, 0x004c4c4c,
+ 0x00919191, 0x006e6e6e, 0x008d8d8d, 0x00767676,
+ 0x00030303, 0x002d2d2d, 0x00dedede, 0x00969696,
+ 0x00262626, 0x007d7d7d, 0x00c6c6c6, 0x005c5c5c,
+ 0x00d3d3d3, 0x00f2f2f2, 0x004f4f4f, 0x00191919,
+ 0x003f3f3f, 0x00dcdcdc, 0x00797979, 0x001d1d1d,
+ 0x00525252, 0x00ebebeb, 0x00f3f3f3, 0x006d6d6d,
+ 0x005e5e5e, 0x00fbfbfb, 0x00696969, 0x00b2b2b2,
+ 0x00f0f0f0, 0x00313131, 0x000c0c0c, 0x00d4d4d4,
+ 0x00cfcfcf, 0x008c8c8c, 0x00e2e2e2, 0x00757575,
+ 0x00a9a9a9, 0x004a4a4a, 0x00575757, 0x00848484,
+ 0x00111111, 0x00454545, 0x001b1b1b, 0x00f5f5f5,
+ 0x00e4e4e4, 0x000e0e0e, 0x00737373, 0x00aaaaaa,
+ 0x00f1f1f1, 0x00dddddd, 0x00595959, 0x00141414,
+ 0x006c6c6c, 0x00929292, 0x00545454, 0x00d0d0d0,
+ 0x00787878, 0x00707070, 0x00e3e3e3, 0x00494949,
+ 0x00808080, 0x00505050, 0x00a7a7a7, 0x00f6f6f6,
+ 0x00777777, 0x00939393, 0x00868686, 0x00838383,
+ 0x002a2a2a, 0x00c7c7c7, 0x005b5b5b, 0x00e9e9e9,
+ 0x00eeeeee, 0x008f8f8f, 0x00010101, 0x003d3d3d,
+};
+
+static const u32 camellia_sp3033[256] = {
+ 0x38003838, 0x41004141, 0x16001616, 0x76007676,
+ 0xd900d9d9, 0x93009393, 0x60006060, 0xf200f2f2,
+ 0x72007272, 0xc200c2c2, 0xab00abab, 0x9a009a9a,
+ 0x75007575, 0x06000606, 0x57005757, 0xa000a0a0,
+ 0x91009191, 0xf700f7f7, 0xb500b5b5, 0xc900c9c9,
+ 0xa200a2a2, 0x8c008c8c, 0xd200d2d2, 0x90009090,
+ 0xf600f6f6, 0x07000707, 0xa700a7a7, 0x27002727,
+ 0x8e008e8e, 0xb200b2b2, 0x49004949, 0xde00dede,
+ 0x43004343, 0x5c005c5c, 0xd700d7d7, 0xc700c7c7,
+ 0x3e003e3e, 0xf500f5f5, 0x8f008f8f, 0x67006767,
+ 0x1f001f1f, 0x18001818, 0x6e006e6e, 0xaf00afaf,
+ 0x2f002f2f, 0xe200e2e2, 0x85008585, 0x0d000d0d,
+ 0x53005353, 0xf000f0f0, 0x9c009c9c, 0x65006565,
+ 0xea00eaea, 0xa300a3a3, 0xae00aeae, 0x9e009e9e,
+ 0xec00ecec, 0x80008080, 0x2d002d2d, 0x6b006b6b,
+ 0xa800a8a8, 0x2b002b2b, 0x36003636, 0xa600a6a6,
+ 0xc500c5c5, 0x86008686, 0x4d004d4d, 0x33003333,
+ 0xfd00fdfd, 0x66006666, 0x58005858, 0x96009696,
+ 0x3a003a3a, 0x09000909, 0x95009595, 0x10001010,
+ 0x78007878, 0xd800d8d8, 0x42004242, 0xcc00cccc,
+ 0xef00efef, 0x26002626, 0xe500e5e5, 0x61006161,
+ 0x1a001a1a, 0x3f003f3f, 0x3b003b3b, 0x82008282,
+ 0xb600b6b6, 0xdb00dbdb, 0xd400d4d4, 0x98009898,
+ 0xe800e8e8, 0x8b008b8b, 0x02000202, 0xeb00ebeb,
+ 0x0a000a0a, 0x2c002c2c, 0x1d001d1d, 0xb000b0b0,
+ 0x6f006f6f, 0x8d008d8d, 0x88008888, 0x0e000e0e,
+ 0x19001919, 0x87008787, 0x4e004e4e, 0x0b000b0b,
+ 0xa900a9a9, 0x0c000c0c, 0x79007979, 0x11001111,
+ 0x7f007f7f, 0x22002222, 0xe700e7e7, 0x59005959,
+ 0xe100e1e1, 0xda00dada, 0x3d003d3d, 0xc800c8c8,
+ 0x12001212, 0x04000404, 0x74007474, 0x54005454,
+ 0x30003030, 0x7e007e7e, 0xb400b4b4, 0x28002828,
+ 0x55005555, 0x68006868, 0x50005050, 0xbe00bebe,
+ 0xd000d0d0, 0xc400c4c4, 0x31003131, 0xcb00cbcb,
+ 0x2a002a2a, 0xad00adad, 0x0f000f0f, 0xca00caca,
+ 0x70007070, 0xff00ffff, 0x32003232, 0x69006969,
+ 0x08000808, 0x62006262, 0x00000000, 0x24002424,
+ 0xd100d1d1, 0xfb00fbfb, 0xba00baba, 0xed00eded,
+ 0x45004545, 0x81008181, 0x73007373, 0x6d006d6d,
+ 0x84008484, 0x9f009f9f, 0xee00eeee, 0x4a004a4a,
+ 0xc300c3c3, 0x2e002e2e, 0xc100c1c1, 0x01000101,
+ 0xe600e6e6, 0x25002525, 0x48004848, 0x99009999,
+ 0xb900b9b9, 0xb300b3b3, 0x7b007b7b, 0xf900f9f9,
+ 0xce00cece, 0xbf00bfbf, 0xdf00dfdf, 0x71007171,
+ 0x29002929, 0xcd00cdcd, 0x6c006c6c, 0x13001313,
+ 0x64006464, 0x9b009b9b, 0x63006363, 0x9d009d9d,
+ 0xc000c0c0, 0x4b004b4b, 0xb700b7b7, 0xa500a5a5,
+ 0x89008989, 0x5f005f5f, 0xb100b1b1, 0x17001717,
+ 0xf400f4f4, 0xbc00bcbc, 0xd300d3d3, 0x46004646,
+ 0xcf00cfcf, 0x37003737, 0x5e005e5e, 0x47004747,
+ 0x94009494, 0xfa00fafa, 0xfc00fcfc, 0x5b005b5b,
+ 0x97009797, 0xfe00fefe, 0x5a005a5a, 0xac00acac,
+ 0x3c003c3c, 0x4c004c4c, 0x03000303, 0x35003535,
+ 0xf300f3f3, 0x23002323, 0xb800b8b8, 0x5d005d5d,
+ 0x6a006a6a, 0x92009292, 0xd500d5d5, 0x21002121,
+ 0x44004444, 0x51005151, 0xc600c6c6, 0x7d007d7d,
+ 0x39003939, 0x83008383, 0xdc00dcdc, 0xaa00aaaa,
+ 0x7c007c7c, 0x77007777, 0x56005656, 0x05000505,
+ 0x1b001b1b, 0xa400a4a4, 0x15001515, 0x34003434,
+ 0x1e001e1e, 0x1c001c1c, 0xf800f8f8, 0x52005252,
+ 0x20002020, 0x14001414, 0xe900e9e9, 0xbd00bdbd,
+ 0xdd00dddd, 0xe400e4e4, 0xa100a1a1, 0xe000e0e0,
+ 0x8a008a8a, 0xf100f1f1, 0xd600d6d6, 0x7a007a7a,
+ 0xbb00bbbb, 0xe300e3e3, 0x40004040, 0x4f004f4f,
+};
+
+static const u32 camellia_sp4404[256] = {
+ 0x70700070, 0x2c2c002c, 0xb3b300b3, 0xc0c000c0,
+ 0xe4e400e4, 0x57570057, 0xeaea00ea, 0xaeae00ae,
+ 0x23230023, 0x6b6b006b, 0x45450045, 0xa5a500a5,
+ 0xeded00ed, 0x4f4f004f, 0x1d1d001d, 0x92920092,
+ 0x86860086, 0xafaf00af, 0x7c7c007c, 0x1f1f001f,
+ 0x3e3e003e, 0xdcdc00dc, 0x5e5e005e, 0x0b0b000b,
+ 0xa6a600a6, 0x39390039, 0xd5d500d5, 0x5d5d005d,
+ 0xd9d900d9, 0x5a5a005a, 0x51510051, 0x6c6c006c,
+ 0x8b8b008b, 0x9a9a009a, 0xfbfb00fb, 0xb0b000b0,
+ 0x74740074, 0x2b2b002b, 0xf0f000f0, 0x84840084,
+ 0xdfdf00df, 0xcbcb00cb, 0x34340034, 0x76760076,
+ 0x6d6d006d, 0xa9a900a9, 0xd1d100d1, 0x04040004,
+ 0x14140014, 0x3a3a003a, 0xdede00de, 0x11110011,
+ 0x32320032, 0x9c9c009c, 0x53530053, 0xf2f200f2,
+ 0xfefe00fe, 0xcfcf00cf, 0xc3c300c3, 0x7a7a007a,
+ 0x24240024, 0xe8e800e8, 0x60600060, 0x69690069,
+ 0xaaaa00aa, 0xa0a000a0, 0xa1a100a1, 0x62620062,
+ 0x54540054, 0x1e1e001e, 0xe0e000e0, 0x64640064,
+ 0x10100010, 0x00000000, 0xa3a300a3, 0x75750075,
+ 0x8a8a008a, 0xe6e600e6, 0x09090009, 0xdddd00dd,
+ 0x87870087, 0x83830083, 0xcdcd00cd, 0x90900090,
+ 0x73730073, 0xf6f600f6, 0x9d9d009d, 0xbfbf00bf,
+ 0x52520052, 0xd8d800d8, 0xc8c800c8, 0xc6c600c6,
+ 0x81810081, 0x6f6f006f, 0x13130013, 0x63630063,
+ 0xe9e900e9, 0xa7a700a7, 0x9f9f009f, 0xbcbc00bc,
+ 0x29290029, 0xf9f900f9, 0x2f2f002f, 0xb4b400b4,
+ 0x78780078, 0x06060006, 0xe7e700e7, 0x71710071,
+ 0xd4d400d4, 0xabab00ab, 0x88880088, 0x8d8d008d,
+ 0x72720072, 0xb9b900b9, 0xf8f800f8, 0xacac00ac,
+ 0x36360036, 0x2a2a002a, 0x3c3c003c, 0xf1f100f1,
+ 0x40400040, 0xd3d300d3, 0xbbbb00bb, 0x43430043,
+ 0x15150015, 0xadad00ad, 0x77770077, 0x80800080,
+ 0x82820082, 0xecec00ec, 0x27270027, 0xe5e500e5,
+ 0x85850085, 0x35350035, 0x0c0c000c, 0x41410041,
+ 0xefef00ef, 0x93930093, 0x19190019, 0x21210021,
+ 0x0e0e000e, 0x4e4e004e, 0x65650065, 0xbdbd00bd,
+ 0xb8b800b8, 0x8f8f008f, 0xebeb00eb, 0xcece00ce,
+ 0x30300030, 0x5f5f005f, 0xc5c500c5, 0x1a1a001a,
+ 0xe1e100e1, 0xcaca00ca, 0x47470047, 0x3d3d003d,
+ 0x01010001, 0xd6d600d6, 0x56560056, 0x4d4d004d,
+ 0x0d0d000d, 0x66660066, 0xcccc00cc, 0x2d2d002d,
+ 0x12120012, 0x20200020, 0xb1b100b1, 0x99990099,
+ 0x4c4c004c, 0xc2c200c2, 0x7e7e007e, 0x05050005,
+ 0xb7b700b7, 0x31310031, 0x17170017, 0xd7d700d7,
+ 0x58580058, 0x61610061, 0x1b1b001b, 0x1c1c001c,
+ 0x0f0f000f, 0x16160016, 0x18180018, 0x22220022,
+ 0x44440044, 0xb2b200b2, 0xb5b500b5, 0x91910091,
+ 0x08080008, 0xa8a800a8, 0xfcfc00fc, 0x50500050,
+ 0xd0d000d0, 0x7d7d007d, 0x89890089, 0x97970097,
+ 0x5b5b005b, 0x95950095, 0xffff00ff, 0xd2d200d2,
+ 0xc4c400c4, 0x48480048, 0xf7f700f7, 0xdbdb00db,
+ 0x03030003, 0xdada00da, 0x3f3f003f, 0x94940094,
+ 0x5c5c005c, 0x02020002, 0x4a4a004a, 0x33330033,
+ 0x67670067, 0xf3f300f3, 0x7f7f007f, 0xe2e200e2,
+ 0x9b9b009b, 0x26260026, 0x37370037, 0x3b3b003b,
+ 0x96960096, 0x4b4b004b, 0xbebe00be, 0x2e2e002e,
+ 0x79790079, 0x8c8c008c, 0x6e6e006e, 0x8e8e008e,
+ 0xf5f500f5, 0xb6b600b6, 0xfdfd00fd, 0x59590059,
+ 0x98980098, 0x6a6a006a, 0x46460046, 0xbaba00ba,
+ 0x25250025, 0x42420042, 0xa2a200a2, 0xfafa00fa,
+ 0x07070007, 0x55550055, 0xeeee00ee, 0x0a0a000a,
+ 0x49490049, 0x68680068, 0x38380038, 0xa4a400a4,
+ 0x28280028, 0x7b7b007b, 0xc9c900c9, 0xc1c100c1,
+ 0xe3e300e3, 0xf4f400f4, 0xc7c700c7, 0x9e9e009e,
+};
+
+
+#define CAMELLIA_MIN_KEY_SIZE 16
+#define CAMELLIA_MAX_KEY_SIZE 32
+#define CAMELLIA_BLOCK_SIZE 16
+#define CAMELLIA_TABLE_BYTE_LEN 272
+
+/*
+ * NB: L and R below stand for 'left' and 'right' as in written numbers.
+ * That is, in (xxxL,xxxR) pair xxxL holds most significant digits,
+ * _not_ least significant ones!
+ */
+
+
+/* key constants */
+
+#define CAMELLIA_SIGMA1L (0xA09E667FL)
+#define CAMELLIA_SIGMA1R (0x3BCC908BL)
+#define CAMELLIA_SIGMA2L (0xB67AE858L)
+#define CAMELLIA_SIGMA2R (0x4CAA73B2L)
+#define CAMELLIA_SIGMA3L (0xC6EF372FL)
+#define CAMELLIA_SIGMA3R (0xE94F82BEL)
+#define CAMELLIA_SIGMA4L (0x54FF53A5L)
+#define CAMELLIA_SIGMA4R (0xF1D36F1CL)
+#define CAMELLIA_SIGMA5L (0x10E527FAL)
+#define CAMELLIA_SIGMA5R (0xDE682D1DL)
+#define CAMELLIA_SIGMA6L (0xB05688C2L)
+#define CAMELLIA_SIGMA6R (0xB3E6C1FDL)
+
+/*
+ * macros
+ */
+#define ROLDQ(ll, lr, rl, rr, w0, w1, bits) ({ \
+ w0 = ll; \
+ ll = (ll << bits) + (lr >> (32 - bits)); \
+ lr = (lr << bits) + (rl >> (32 - bits)); \
+ rl = (rl << bits) + (rr >> (32 - bits)); \
+ rr = (rr << bits) + (w0 >> (32 - bits)); \
+})
+
+#define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) ({ \
+ w0 = ll; \
+ w1 = lr; \
+ ll = (lr << (bits - 32)) + (rl >> (64 - bits)); \
+ lr = (rl << (bits - 32)) + (rr >> (64 - bits)); \
+ rl = (rr << (bits - 32)) + (w0 >> (64 - bits)); \
+ rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \
+})
+
+#define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) ({ \
+ il = xl ^ kl; \
+ ir = xr ^ kr; \
+ t0 = il >> 16; \
+ t1 = ir >> 16; \
+ yl = camellia_sp1110[(u8)(ir)] \
+ ^ camellia_sp0222[(u8)(t1 >> 8)] \
+ ^ camellia_sp3033[(u8)(t1)] \
+ ^ camellia_sp4404[(u8)(ir >> 8)]; \
+ yr = camellia_sp1110[(u8)(t0 >> 8)] \
+ ^ camellia_sp0222[(u8)(t0)] \
+ ^ camellia_sp3033[(u8)(il >> 8)] \
+ ^ camellia_sp4404[(u8)(il)]; \
+ yl ^= yr; \
+ yr = ror32(yr, 8); \
+ yr ^= yl; \
+})
+
+#define SUBKEY_L(INDEX) (subkey[(INDEX)*2])
+#define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1])
+
+static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
+{
+ u32 dw, tl, tr;
+ u32 kw4l, kw4r;
+
+ /* absorb kw2 to other subkeys */
+ /* round 2 */
+ subL[3] ^= subL[1]; subR[3] ^= subR[1];
+ /* round 4 */
+ subL[5] ^= subL[1]; subR[5] ^= subR[1];
+ /* round 6 */
+ subL[7] ^= subL[1]; subR[7] ^= subR[1];
+ subL[1] ^= subR[1] & ~subR[9];
+ dw = subL[1] & subL[9];
+ subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */
+ /* round 8 */
+ subL[11] ^= subL[1]; subR[11] ^= subR[1];
+ /* round 10 */
+ subL[13] ^= subL[1]; subR[13] ^= subR[1];
+ /* round 12 */
+ subL[15] ^= subL[1]; subR[15] ^= subR[1];
+ subL[1] ^= subR[1] & ~subR[17];
+ dw = subL[1] & subL[17];
+ subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */
+ /* round 14 */
+ subL[19] ^= subL[1]; subR[19] ^= subR[1];
+ /* round 16 */
+ subL[21] ^= subL[1]; subR[21] ^= subR[1];
+ /* round 18 */
+ subL[23] ^= subL[1]; subR[23] ^= subR[1];
+ if (max == 24) {
+ /* kw3 */
+ subL[24] ^= subL[1]; subR[24] ^= subR[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4l = subL[25]; kw4r = subR[25];
+ } else {
+ subL[1] ^= subR[1] & ~subR[25];
+ dw = subL[1] & subL[25];
+ subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */
+ /* round 20 */
+ subL[27] ^= subL[1]; subR[27] ^= subR[1];
+ /* round 22 */
+ subL[29] ^= subL[1]; subR[29] ^= subR[1];
+ /* round 24 */
+ subL[31] ^= subL[1]; subR[31] ^= subR[1];
+ /* kw3 */
+ subL[32] ^= subL[1]; subR[32] ^= subR[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4l = subL[33]; kw4r = subR[33];
+ /* round 23 */
+ subL[30] ^= kw4l; subR[30] ^= kw4r;
+ /* round 21 */
+ subL[28] ^= kw4l; subR[28] ^= kw4r;
+ /* round 19 */
+ subL[26] ^= kw4l; subR[26] ^= kw4r;
+ kw4l ^= kw4r & ~subR[24];
+ dw = kw4l & subL[24];
+ kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */
+ }
+ /* round 17 */
+ subL[22] ^= kw4l; subR[22] ^= kw4r;
+ /* round 15 */
+ subL[20] ^= kw4l; subR[20] ^= kw4r;
+ /* round 13 */
+ subL[18] ^= kw4l; subR[18] ^= kw4r;
+ kw4l ^= kw4r & ~subR[16];
+ dw = kw4l & subL[16];
+ kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */
+ /* round 11 */
+ subL[14] ^= kw4l; subR[14] ^= kw4r;
+ /* round 9 */
+ subL[12] ^= kw4l; subR[12] ^= kw4r;
+ /* round 7 */
+ subL[10] ^= kw4l; subR[10] ^= kw4r;
+ kw4l ^= kw4r & ~subR[8];
+ dw = kw4l & subL[8];
+ kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */
+ /* round 5 */
+ subL[6] ^= kw4l; subR[6] ^= kw4r;
+ /* round 3 */
+ subL[4] ^= kw4l; subR[4] ^= kw4r;
+ /* round 1 */
+ subL[2] ^= kw4l; subR[2] ^= kw4r;
+ /* kw1 */
+ subL[0] ^= kw4l; subR[0] ^= kw4r;
+
+ /* key XOR is end of F-function */
+ SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
+ SUBKEY_R(0) = subR[0] ^ subR[2];
+ SUBKEY_L(2) = subL[3]; /* round 1 */
+ SUBKEY_R(2) = subR[3];
+ SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
+ SUBKEY_R(3) = subR[2] ^ subR[4];
+ SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
+ SUBKEY_R(4) = subR[3] ^ subR[5];
+ SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
+ SUBKEY_R(5) = subR[4] ^ subR[6];
+ SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
+ SUBKEY_R(6) = subR[5] ^ subR[7];
+ tl = subL[10] ^ (subR[10] & ~subR[8]);
+ dw = tl & subL[8]; /* FL(kl1) */
+ tr = subR[10] ^ rol32(dw, 1);
+ SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
+ SUBKEY_R(7) = subR[6] ^ tr;
+ SUBKEY_L(8) = subL[8]; /* FL(kl1) */
+ SUBKEY_R(8) = subR[8];
+ SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
+ SUBKEY_R(9) = subR[9];
+ tl = subL[7] ^ (subR[7] & ~subR[9]);
+ dw = tl & subL[9]; /* FLinv(kl2) */
+ tr = subR[7] ^ rol32(dw, 1);
+ SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
+ SUBKEY_R(10) = tr ^ subR[11];
+ SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
+ SUBKEY_R(11) = subR[10] ^ subR[12];
+ SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
+ SUBKEY_R(12) = subR[11] ^ subR[13];
+ SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
+ SUBKEY_R(13) = subR[12] ^ subR[14];
+ SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
+ SUBKEY_R(14) = subR[13] ^ subR[15];
+ tl = subL[18] ^ (subR[18] & ~subR[16]);
+ dw = tl & subL[16]; /* FL(kl3) */
+ tr = subR[18] ^ rol32(dw, 1);
+ SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
+ SUBKEY_R(15) = subR[14] ^ tr;
+ SUBKEY_L(16) = subL[16]; /* FL(kl3) */
+ SUBKEY_R(16) = subR[16];
+ SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
+ SUBKEY_R(17) = subR[17];
+ tl = subL[15] ^ (subR[15] & ~subR[17]);
+ dw = tl & subL[17]; /* FLinv(kl4) */
+ tr = subR[15] ^ rol32(dw, 1);
+ SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
+ SUBKEY_R(18) = tr ^ subR[19];
+ SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
+ SUBKEY_R(19) = subR[18] ^ subR[20];
+ SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
+ SUBKEY_R(20) = subR[19] ^ subR[21];
+ SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
+ SUBKEY_R(21) = subR[20] ^ subR[22];
+ SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
+ SUBKEY_R(22) = subR[21] ^ subR[23];
+ if (max == 24) {
+ SUBKEY_L(23) = subL[22]; /* round 18 */
+ SUBKEY_R(23) = subR[22];
+ SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */
+ SUBKEY_R(24) = subR[24] ^ subR[23];
+ } else {
+ tl = subL[26] ^ (subR[26] & ~subR[24]);
+ dw = tl & subL[24]; /* FL(kl5) */
+ tr = subR[26] ^ rol32(dw, 1);
+ SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
+ SUBKEY_R(23) = subR[22] ^ tr;
+ SUBKEY_L(24) = subL[24]; /* FL(kl5) */
+ SUBKEY_R(24) = subR[24];
+ SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */
+ SUBKEY_R(25) = subR[25];
+ tl = subL[23] ^ (subR[23] & ~subR[25]);
+ dw = tl & subL[25]; /* FLinv(kl6) */
+ tr = subR[23] ^ rol32(dw, 1);
+ SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
+ SUBKEY_R(26) = tr ^ subR[27];
+ SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
+ SUBKEY_R(27) = subR[26] ^ subR[28];
+ SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */
+ SUBKEY_R(28) = subR[27] ^ subR[29];
+ SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */
+ SUBKEY_R(29) = subR[28] ^ subR[30];
+ SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */
+ SUBKEY_R(30) = subR[29] ^ subR[31];
+ SUBKEY_L(31) = subL[30]; /* round 24 */
+ SUBKEY_R(31) = subR[30];
+ SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */
+ SUBKEY_R(32) = subR[32] ^ subR[31];
+ }
+}
+
+static void camellia_setup128(const unsigned char *key, u32 *subkey)
+{
+ u32 kll, klr, krl, krr;
+ u32 il, ir, t0, t1, w0, w1;
+ u32 subL[26];
+ u32 subR[26];
+
+ /**
+ * k == kll || klr || krl || krr (|| is concatenation)
+ */
+ kll = get_unaligned_be32(key);
+ klr = get_unaligned_be32(key + 4);
+ krl = get_unaligned_be32(key + 8);
+ krr = get_unaligned_be32(key + 12);
+
+ /* generate KL dependent subkeys */
+ /* kw1 */
+ subL[0] = kll; subR[0] = klr;
+ /* kw2 */
+ subL[1] = krl; subR[1] = krr;
+ /* rotation left shift 15bit */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* k3 */
+ subL[4] = kll; subR[4] = klr;
+ /* k4 */
+ subL[5] = krl; subR[5] = krr;
+ /* rotation left shift 15+30bit */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 30);
+ /* k7 */
+ subL[10] = kll; subR[10] = klr;
+ /* k8 */
+ subL[11] = krl; subR[11] = krr;
+ /* rotation left shift 15+30+15bit */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* k10 */
+ subL[13] = krl; subR[13] = krr;
+ /* rotation left shift 15+30+15+17 bit */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ /* kl3 */
+ subL[16] = kll; subR[16] = klr;
+ /* kl4 */
+ subL[17] = krl; subR[17] = krr;
+ /* rotation left shift 15+30+15+17+17 bit */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ /* k13 */
+ subL[18] = kll; subR[18] = klr;
+ /* k14 */
+ subL[19] = krl; subR[19] = krr;
+ /* rotation left shift 15+30+15+17+17+17 bit */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ /* k17 */
+ subL[22] = kll; subR[22] = klr;
+ /* k18 */
+ subL[23] = krl; subR[23] = krr;
+
+ /* generate KA */
+ kll = subL[0]; klr = subR[0];
+ krl = subL[1]; krr = subR[1];
+ CAMELLIA_F(kll, klr,
+ CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
+ w0, w1, il, ir, t0, t1);
+ krl ^= w0; krr ^= w1;
+ CAMELLIA_F(krl, krr,
+ CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
+ kll, klr, il, ir, t0, t1);
+ /* current status == (kll, klr, w0, w1) */
+ CAMELLIA_F(kll, klr,
+ CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
+ krl, krr, il, ir, t0, t1);
+ krl ^= w0; krr ^= w1;
+ CAMELLIA_F(krl, krr,
+ CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
+ w0, w1, il, ir, t0, t1);
+ kll ^= w0; klr ^= w1;
+
+ /* generate KA dependent subkeys */
+ /* k1, k2 */
+ subL[2] = kll; subR[2] = klr;
+ subL[3] = krl; subR[3] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* k5,k6 */
+ subL[6] = kll; subR[6] = klr;
+ subL[7] = krl; subR[7] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* kl1, kl2 */
+ subL[8] = kll; subR[8] = klr;
+ subL[9] = krl; subR[9] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* k9 */
+ subL[12] = kll; subR[12] = klr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* k11, k12 */
+ subL[14] = kll; subR[14] = klr;
+ subL[15] = krl; subR[15] = krr;
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
+ /* k15, k16 */
+ subL[20] = kll; subR[20] = klr;
+ subL[21] = krl; subR[21] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ /* kw3, kw4 */
+ subL[24] = kll; subR[24] = klr;
+ subL[25] = krl; subR[25] = krr;
+
+ camellia_setup_tail(subkey, subL, subR, 24);
+}
+
+static void camellia_setup256(const unsigned char *key, u32 *subkey)
+{
+ u32 kll, klr, krl, krr; /* left half of key */
+ u32 krll, krlr, krrl, krrr; /* right half of key */
+ u32 il, ir, t0, t1, w0, w1; /* temporary variables */
+ u32 subL[34];
+ u32 subR[34];
+
+ /**
+ * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr)
+ * (|| is concatenation)
+ */
+ kll = get_unaligned_be32(key);
+ klr = get_unaligned_be32(key + 4);
+ krl = get_unaligned_be32(key + 8);
+ krr = get_unaligned_be32(key + 12);
+ krll = get_unaligned_be32(key + 16);
+ krlr = get_unaligned_be32(key + 20);
+ krrl = get_unaligned_be32(key + 24);
+ krrr = get_unaligned_be32(key + 28);
+
+ /* generate KL dependent subkeys */
+ /* kw1 */
+ subL[0] = kll; subR[0] = klr;
+ /* kw2 */
+ subL[1] = krl; subR[1] = krr;
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 45);
+ /* k9 */
+ subL[12] = kll; subR[12] = klr;
+ /* k10 */
+ subL[13] = krl; subR[13] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* kl3 */
+ subL[16] = kll; subR[16] = klr;
+ /* kl4 */
+ subL[17] = krl; subR[17] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 17);
+ /* k17 */
+ subL[22] = kll; subR[22] = klr;
+ /* k18 */
+ subL[23] = krl; subR[23] = krr;
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
+ /* k23 */
+ subL[30] = kll; subR[30] = klr;
+ /* k24 */
+ subL[31] = krl; subR[31] = krr;
+
+ /* generate KR dependent subkeys */
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
+ /* k3 */
+ subL[4] = krll; subR[4] = krlr;
+ /* k4 */
+ subL[5] = krrl; subR[5] = krrr;
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
+ /* kl1 */
+ subL[8] = krll; subR[8] = krlr;
+ /* kl2 */
+ subL[9] = krrl; subR[9] = krrr;
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
+ /* k13 */
+ subL[18] = krll; subR[18] = krlr;
+ /* k14 */
+ subL[19] = krrl; subR[19] = krrr;
+ ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
+ /* k19 */
+ subL[26] = krll; subR[26] = krlr;
+ /* k20 */
+ subL[27] = krrl; subR[27] = krrr;
+ ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
+
+ /* generate KA */
+ kll = subL[0] ^ krll; klr = subR[0] ^ krlr;
+ krl = subL[1] ^ krrl; krr = subR[1] ^ krrr;
+ CAMELLIA_F(kll, klr,
+ CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
+ w0, w1, il, ir, t0, t1);
+ krl ^= w0; krr ^= w1;
+ CAMELLIA_F(krl, krr,
+ CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
+ kll, klr, il, ir, t0, t1);
+ kll ^= krll; klr ^= krlr;
+ CAMELLIA_F(kll, klr,
+ CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
+ krl, krr, il, ir, t0, t1);
+ krl ^= w0 ^ krrl; krr ^= w1 ^ krrr;
+ CAMELLIA_F(krl, krr,
+ CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
+ w0, w1, il, ir, t0, t1);
+ kll ^= w0; klr ^= w1;
+
+ /* generate KB */
+ krll ^= kll; krlr ^= klr;
+ krrl ^= krl; krrr ^= krr;
+ CAMELLIA_F(krll, krlr,
+ CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R,
+ w0, w1, il, ir, t0, t1);
+ krrl ^= w0; krrr ^= w1;
+ CAMELLIA_F(krrl, krrr,
+ CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R,
+ w0, w1, il, ir, t0, t1);
+ krll ^= w0; krlr ^= w1;
+
+ /* generate KA dependent subkeys */
+ ROLDQ(kll, klr, krl, krr, w0, w1, 15);
+ /* k5 */
+ subL[6] = kll; subR[6] = klr;
+ /* k6 */
+ subL[7] = krl; subR[7] = krr;
+ ROLDQ(kll, klr, krl, krr, w0, w1, 30);
+ /* k11 */
+ subL[14] = kll; subR[14] = klr;
+ /* k12 */
+ subL[15] = krl; subR[15] = krr;
+ /* rotation left shift 32bit */
+ /* kl5 */
+ subL[24] = klr; subR[24] = krl;
+ /* kl6 */
+ subL[25] = krr; subR[25] = kll;
+ /* rotation left shift 49 from k11,k12 -> k21,k22 */
+ ROLDQo32(kll, klr, krl, krr, w0, w1, 49);
+ /* k21 */
+ subL[28] = kll; subR[28] = klr;
+ /* k22 */
+ subL[29] = krl; subR[29] = krr;
+
+ /* generate KB dependent subkeys */
+ /* k1 */
+ subL[2] = krll; subR[2] = krlr;
+ /* k2 */
+ subL[3] = krrl; subR[3] = krrr;
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
+ /* k7 */
+ subL[10] = krll; subR[10] = krlr;
+ /* k8 */
+ subL[11] = krrl; subR[11] = krrr;
+ ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
+ /* k15 */
+ subL[20] = krll; subR[20] = krlr;
+ /* k16 */
+ subL[21] = krrl; subR[21] = krrr;
+ ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51);
+ /* kw3 */
+ subL[32] = krll; subR[32] = krlr;
+ /* kw4 */
+ subL[33] = krrl; subR[33] = krrr;
+
+ camellia_setup_tail(subkey, subL, subR, 32);
+}
+
+static void camellia_setup192(const unsigned char *key, u32 *subkey)
+{
+ unsigned char kk[32];
+ u32 krll, krlr, krrl, krrr;
+
+ memcpy(kk, key, 24);
+ memcpy((unsigned char *)&krll, key+16, 4);
+ memcpy((unsigned char *)&krlr, key+20, 4);
+ krrl = ~krll;
+ krrr = ~krlr;
+ memcpy(kk+24, (unsigned char *)&krrl, 4);
+ memcpy(kk+28, (unsigned char *)&krrr, 4);
+ camellia_setup256(kk, subkey);
+}
+
+
+/*
+ * Encrypt/decrypt
+ */
+#define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) ({ \
+ t0 = kll; \
+ t2 = krr; \
+ t0 &= ll; \
+ t2 |= rr; \
+ rl ^= t2; \
+ lr ^= rol32(t0, 1); \
+ t3 = krl; \
+ t1 = klr; \
+ t3 &= rl; \
+ t1 |= lr; \
+ ll ^= t1; \
+ rr ^= rol32(t3, 1); \
+})
+
+#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) ({ \
+ yl ^= kl; \
+ yr ^= kr; \
+ ir = camellia_sp1110[(u8)xr]; \
+ il = camellia_sp1110[(u8)(xl >> 24)]; \
+ ir ^= camellia_sp0222[(u8)(xr >> 24)]; \
+ il ^= camellia_sp0222[(u8)(xl >> 16)]; \
+ ir ^= camellia_sp3033[(u8)(xr >> 16)]; \
+ il ^= camellia_sp3033[(u8)(xl >> 8)]; \
+ ir ^= camellia_sp4404[(u8)(xr >> 8)]; \
+ il ^= camellia_sp4404[(u8)xl]; \
+ ir ^= il; \
+ yl ^= ir; \
+ yr ^= ror32(il, 8) ^ ir; \
+})
+
+/* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
+static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max)
+{
+ u32 il, ir, t0, t1; /* temporary variables */
+
+ /* pre whitening but absorb kw2 */
+ io[0] ^= SUBKEY_L(0);
+ io[1] ^= SUBKEY_R(0);
+
+ /* main iteration */
+#define ROUNDS(i) ({ \
+ CAMELLIA_ROUNDSM(io[0], io[1], \
+ SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
+ io[2], io[3], il, ir); \
+ CAMELLIA_ROUNDSM(io[2], io[3], \
+ SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
+ io[0], io[1], il, ir); \
+ CAMELLIA_ROUNDSM(io[0], io[1], \
+ SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
+ io[2], io[3], il, ir); \
+ CAMELLIA_ROUNDSM(io[2], io[3], \
+ SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
+ io[0], io[1], il, ir); \
+ CAMELLIA_ROUNDSM(io[0], io[1], \
+ SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
+ io[2], io[3], il, ir); \
+ CAMELLIA_ROUNDSM(io[2], io[3], \
+ SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
+ io[0], io[1], il, ir); \
+})
+#define FLS(i) ({ \
+ CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
+ SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
+ SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
+ t0, t1, il, ir); \
+})
+
+ ROUNDS(0);
+ FLS(8);
+ ROUNDS(8);
+ FLS(16);
+ ROUNDS(16);
+ if (max == 32) {
+ FLS(24);
+ ROUNDS(24);
+ }
+
+#undef ROUNDS
+#undef FLS
+
+ /* post whitening but kw4 */
+ io[2] ^= SUBKEY_L(max);
+ io[3] ^= SUBKEY_R(max);
+ /* NB: io[0],[1] should be swapped with [2],[3] by caller! */
+}
+
+static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i)
+{
+ u32 il, ir, t0, t1; /* temporary variables */
+
+ /* pre whitening but absorb kw2 */
+ io[0] ^= SUBKEY_L(i);
+ io[1] ^= SUBKEY_R(i);
+
+ /* main iteration */
+#define ROUNDS(i) ({ \
+ CAMELLIA_ROUNDSM(io[0], io[1], \
+ SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
+ io[2], io[3], il, ir); \
+ CAMELLIA_ROUNDSM(io[2], io[3], \
+ SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
+ io[0], io[1], il, ir); \
+ CAMELLIA_ROUNDSM(io[0], io[1], \
+ SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
+ io[2], io[3], il, ir); \
+ CAMELLIA_ROUNDSM(io[2], io[3], \
+ SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
+ io[0], io[1], il, ir); \
+ CAMELLIA_ROUNDSM(io[0], io[1], \
+ SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
+ io[2], io[3], il, ir); \
+ CAMELLIA_ROUNDSM(io[2], io[3], \
+ SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
+ io[0], io[1], il, ir); \
+})
+#define FLS(i) ({ \
+ CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
+ SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
+ SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
+ t0, t1, il, ir); \
+})
+
+ if (i == 32) {
+ ROUNDS(24);
+ FLS(24);
+ }
+ ROUNDS(16);
+ FLS(16);
+ ROUNDS(8);
+ FLS(8);
+ ROUNDS(0);
+
+#undef ROUNDS
+#undef FLS
+
+ /* post whitening but kw4 */
+ io[2] ^= SUBKEY_L(0);
+ io[3] ^= SUBKEY_R(0);
+ /* NB: 0,1 should be swapped with 2,3 by caller! */
+}
+
+
+struct camellia_ctx {
+ int key_length;
+ u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)];
+};
+
+static int
+camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
+ const unsigned char *key = (const unsigned char *)in_key;
+ u32 *flags = &tfm->crt_flags;
+
+ if (key_len != 16 && key_len != 24 && key_len != 32) {
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+
+ cctx->key_length = key_len;
+
+ switch (key_len) {
+ case 16:
+ camellia_setup128(key, cctx->key_table);
+ break;
+ case 24:
+ camellia_setup192(key, cctx->key_table);
+ break;
+ case 32:
+ camellia_setup256(key, cctx->key_table);
+ break;
+ }
+
+ return 0;
+}
+
+static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
+ const __be32 *src = (const __be32 *)in;
+ __be32 *dst = (__be32 *)out;
+ unsigned int max;
+
+ u32 tmp[4];
+
+ tmp[0] = be32_to_cpu(src[0]);
+ tmp[1] = be32_to_cpu(src[1]);
+ tmp[2] = be32_to_cpu(src[2]);
+ tmp[3] = be32_to_cpu(src[3]);
+
+ if (cctx->key_length == 16)
+ max = 24;
+ else
+ max = 32; /* for key lengths of 24 and 32 */
+
+ camellia_do_encrypt(cctx->key_table, tmp, max);
+
+ /* do_encrypt returns 0,1 swapped with 2,3 */
+ dst[0] = cpu_to_be32(tmp[2]);
+ dst[1] = cpu_to_be32(tmp[3]);
+ dst[2] = cpu_to_be32(tmp[0]);
+ dst[3] = cpu_to_be32(tmp[1]);
+}
+
+static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
+ const __be32 *src = (const __be32 *)in;
+ __be32 *dst = (__be32 *)out;
+ unsigned int max;
+
+ u32 tmp[4];
+
+ tmp[0] = be32_to_cpu(src[0]);
+ tmp[1] = be32_to_cpu(src[1]);
+ tmp[2] = be32_to_cpu(src[2]);
+ tmp[3] = be32_to_cpu(src[3]);
+
+ if (cctx->key_length == 16)
+ max = 24;
+ else
+ max = 32; /* for key lengths of 24 and 32 */
+
+ camellia_do_decrypt(cctx->key_table, tmp, max);
+
+ /* do_decrypt returns 0,1 swapped with 2,3 */
+ dst[0] = cpu_to_be32(tmp[2]);
+ dst[1] = cpu_to_be32(tmp[3]);
+ dst[2] = cpu_to_be32(tmp[0]);
+ dst[3] = cpu_to_be32(tmp[1]);
+}
+
+static struct crypto_alg camellia_alg = {
+ .cra_name = "camellia",
+ .cra_driver_name = "camellia-generic",
+ .cra_priority = 100,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct camellia_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .cia_setkey = camellia_set_key,
+ .cia_encrypt = camellia_encrypt,
+ .cia_decrypt = camellia_decrypt
+ }
+ }
+};
+
+static int __init camellia_init(void)
+{
+ return crypto_register_alg(&camellia_alg);
+}
+
+static void __exit camellia_fini(void)
+{
+ crypto_unregister_alg(&camellia_alg);
+}
+
+module_init(camellia_init);
+module_exit(camellia_fini);
+
+MODULE_DESCRIPTION("Camellia Cipher Algorithm");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("camellia");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 01:51:16 +0000